I had the opportunity to drive an exceptionally large JD harvester tractor. I don't remember its numbers but it was huge and had a cab with AC, all the bells and whistles. The thing it didn't have was auto drive and gps. Nowadays, these big buys are outfitted with auto drives to keep them on course. Basically the driver is just monitoring except on turnarounds. And staying on course is important because if a wheel is off course by just a foot or so, it can tear up two complete rows of whatever you're growing or it can be off course for the next row.
Anyhow, this tractor was manual and as best as I watched I couldn't keep it straight. I thought I was doing great but when I finished a run there was a long arc. I kept looking behind to see if I was on course and it seemed like it was. It was dent corn and I couldn't see the front wheel until I could see the back missing stalks. You can't back up and start over. My "opportunity" driving the big boys didn't last long.
My problem was defined by what I put in bold and then exemplified again in Luke 9:62 when Jesus said "no man who puts a hand to the plow and looks back is fit for the kingdom of God". This is what He was talking about! If you fix your eye on a given point and go in that direction without distraction your line will be straight.
Jesus wasn't talking about marriage and divorce I don't guess, but I think a message is that once your start out, that if you keep your eye on point and commit to that point without offering yourself a back door or the distraction of looking back to ensure your "straightness", that your end goal is met. No back door. No backing up and starting over.
Like that Spanish explorer Cortes. He landed in the Americas and then set fire to his entire fleet. That meant that no matter what happened, no matter how cold the winter or bad the disease, the ships weren't there to take them home. There was no back door for those guys. No looking back. He and his crew then knew with all certainty the pledge they made suddenly turned into a life or death commitment.
Divorce is just a back door. An outside attraction is just looking back. Separate interests or goals just damage crops. My 2 cents, but then again what do I know?